GitHub really embraced the Microsoft-esque NIH with LFS, instead of adopting git-annex.
FD: I have contributed to git-lfs.
Here is a talk by a person who adores it: Yann Büchau: Staying in Control of your Scientific Data with Git Annex https://www.youtube.com/watch?v=IdRUsn-zB2s
And an interview When power is low, I often hack in the evenings by lantern light. https://usesthis.com/interviews/joey.hess/